Perhaps I should have called this thread “what am I doing wrong?”… I’m experiencing some problems with puddling and smearing on the darkest ink, trying to make a negative for pt/pd printing. Some background information on what I am using:
Mac OS X Maverick
P2 Piezography digital negative (6 inks including matte black)
Pictorico Premium OHP transparency film
QTR Print - Image TIFF-16 Gamma 2.2
Curve: P2M-PZDN-X800-Meth3-1_6v3 through 1_8v3
ink slot 1: MK / Selenium Matte Black
ink slot 2: PK / Flush
ink slot 3: Light Black / Selenium 6
ink slot 4: Light Light Black / Selenium 4.5
ink slot 5: Cyan / Selenium 2
ink slot 6: Magenta / Selenium 4
ink slot 7: Light Cyan / Selenium 3
ink slot 8: Light Magenta / Selenium 5
ink slot 9: Yellow / Selenium 2.5
Below is a partial scan of the negative I have printed last night with the 1.8 curve. The 1.8 curve lays more ink so it shows the most problems I’ve been having, but these do show as well with the 1.6 and 1.7 curves.
The second image is a crop of the above image, with the original negative on top. I’ve circled in red areas of puddling and smearing. I’ve highlighted in green another weird aspect where the dark ink(s) form lines on the edges.
Below is a 200% enlargement of the step tablet. Again, you can see the puddling in the darkest areas, along with the lines around the numbers. You can also see some smearing on the edges, looking like I used spray paint and a stencil… I did a nozzle check before printing and the smearing was not as prominent as it is in this case. The detail below is actually the second print. Does this mean I have to do a nozzle check before printing every negative?
Thank you in advance for your help and guidance, i much look forward to making beautiful and clean negatives! Dana knows that I’ve experienced some difficulties installing the cartridges; they were all unrecognized. But putting some small pieces of paper beneath three of the chips seem to have resolve the issue.
One last thing: upon Dana’s suggestion, I printed the negative on matte paper. I used the P2M curve for Canson Photo Rag, but only had a sheet of the Canson Mi-Teintes. The print looks sharp and clean. The paper is however a bit rippled from being wet. I have no idea if this is normal, if it is the paper or the curve I used, but it looks clean and consistent with the original file.